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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_asio.reference.is_nothrow_require"></a><a class="link" href="is_nothrow_require.html" title="is_nothrow_require">is_nothrow_require</a>
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<p>
        <a class="indexterm" name="boost_asio.indexterm.is_nothrow_require"></a>
      </p>
<p>
        A type trait that determines whether a <code class="computeroutput">require</code> expression will
        not throw.
      </p>
<pre class="programlisting">template&lt;
    typename T,
    typename... Properties&gt;
struct is_nothrow_require
</pre>
<p>
        Class template <code class="computeroutput">is_nothrow_require</code> is a trait that is derived
        from <code class="computeroutput">true_type</code> if the expression <code class="computeroutput">boost::asio::require(std::declval&lt;T&gt;(),
        std::declval&lt;Properties&gt;()...)</code> is <code class="computeroutput">noexcept</code>; otherwise
        <code class="computeroutput">false_type</code>.
      </p>
<h5>
<a name="boost_asio.reference.is_nothrow_require.h0"></a>
        <span class="phrase"><a name="boost_asio.reference.is_nothrow_require.requirements"></a></span><a class="link" href="is_nothrow_require.html#boost_asio.reference.is_nothrow_require.requirements">Requirements</a>
      </h5>
<p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/require.hpp</code>
      </p>
<p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
      </p>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
      M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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